| #ifndef __SYSDEP_I386_BARRIER_H | |
| #define __SYSDEP_I386_BARRIER_H | |
| /* Copied from include/asm-i386 for use by userspace. i386 has the option | |
| * of using mfence, but I'm just using this, which works everywhere, for now. | |
| */ | |
| #define mb() asm volatile("lock; addl $0,0(%esp)") | |
| #endif |